3x² - xy / 9x² - 6xy + y² = x / ( ) = ( ) / 9x² - y²
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![3x² - xy / 9x² - 6xy + y² = x / ( ) = ( ) / 9x² - y²](/uploads/image/z/2765188-28-8.jpg?t=3x%26%23178%3B+-+xy+%2F+9x%26%23178%3B+-+6xy+%2B+y%26%23178%3B+%3D+x+%2F+%28+%29+%3D+%28+%29+%2F+9x%26%23178%3B+-+y%26%23178%3B)
3x² - xy / 9x² - 6xy + y² = x / ( ) = ( ) / 9x² - y²
3x² - xy / 9x² - 6xy + y² = x / ( ) = ( ) / 9x² - y²
3x² - xy / 9x² - 6xy + y² = x / ( ) = ( ) / 9x² - y²
3x² - xy / 9x² - 6xy + y²
=x(3x-y)/(3x-y)²
=x/(3x-y)
x/(x-3y)
=x(x+3y)/(x-3y)(x+3y)
=(x²+3xy)/(9x²-y²)